Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Irish Potato Champ
Ingredients
Directions
Boil the potatoes
Put potatoes in a saucepan and cover with enough water.
Bring to a boil.
Reduce to medium heat and cook for 25 minutes or until potatoes are tender.
Drain.
Mash potatoes.
Cover and set aside.
Make the champ
In another saucepan, combine milk, green onions and butter over medium heat.
Add Tabasco sauce and mashed potatoes.
Stir and continue to cook until mixture becomes creamy.
Add salt to taste.
Serve piping hot.
Nutrition, whole recipe (rough)
Counts 6 of 7 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 6 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Potato | 1 medium (173g) baked | 161 |
| Milk | 1 cup (244ml) whole | 149 |
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Bell Pepper | 1 medium (119g) | 31 |
| Salt | 1 tsp (6g) | 0 |
| Sauce | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Baking potatoes
- Starchy base that mashes into a fluffy, soft body for the dish.
- Milk
- Adds moisture and loosens the mash into a creamy texture.
- Butter
- Adds fat for richness and smooth mouthfeel.
- Green onions
- Provide fresh, mild onion aroma and flavour throughout the mash.
The step that matters
Cook the potatoes until fully tender before mashing. Potatoes that are not fully cooked through stay firm and lumpy, and they cannot mash smoothly. Cooking until a knife or fork slides in easily gives a soft starch that blends evenly with the milk and butter.
Swap the onion
How well each one fits the dish's main ingredients (potato, milk, butter, pepper, sauce):
- Capsicumfits better
- Tomatofits about as well
- Asparagusfits about as well
- Onionthe original
Fit is the average pairing score against potato, milk, butter, pepper, sauce. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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